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NCV891334MW50R2G
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Product Detailed Parameters
- Description：IC REG CTRLR BUCK 12DFN
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Bulk
- Output Type：PWM Signal
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：3.7V ~ 36V
- Frequency - Switching：2MHz
- Duty Cycle (Max)：60%
- Synchronous Rectifier：-
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：Current Limit, Enable, Reset
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：12-VDFN Exposed Pad
- Supplier Device Package：12-DFN (4x4)
- Grade：Automotive
- Qualification：-
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Overview
The NCV891334MW50R2G is an automotive-grade synchronous step-down DC-DC converter manufactured by onsemi. It operates with an input voltage range of 3.7 V to 36 V and provides a fixed output voltage of 5.0 V at up to 4 A load current. The device integrates high-side and low-side power MOSFETs within an 8-pin MWBGA package measuring 3 mm x 3 mm x 0.9 mm. It supports a switching frequency of 2 MHz and functions reliably across a junction temperature range of -40 °C to +150 °C, certified under the AEC-Q100 standard for automotive applications.
Feature Summary
- Integrated synchronous rectification architecture combining high-side and low-side power switches
- Automotive qualification compliant with AEC-Q100 reliability standards
- Compact surface-mount packaging designed for space-constrained PCB layouts
Applications
- In-vehicle infotainment system power distribution
- Telematics control unit voltage regulation
- ADAS sensor module power supply conditioning
Procurement Notes
Verify the complete part number including suffixes against official manufacturer documentation to ensure correct output voltage and package variant. Confirm that the specific revision matches project requirements for thermal performance and electrical characteristics. Cross-reference datasheet specifications for operating temperature limits and pinout configurations prior to integration into final assembly designs.
Selection Notes
Select this component when designing systems requiring a fixed 5 V rail from higher automotive bus voltages up to 36 V. The integrated synchronous design eliminates external Schottky diodes, improving efficiency compared to non-synchronous alternatives. Ensure adequate thermal management is provided due to the compact footprint and high current capability in enclosed automotive environments.
Part Context
This regulator belongs to the NCV8913xx series of automotive synchronous buck converters. The series offers various fixed output voltage options tailored for different subsystem needs within vehicle electronics. All members share common architectural features including high efficiency, wide input voltage tolerance, and robust protection mechanisms suitable for harsh automotive electrical environments.
Replacement Considerations
Compatible substitutes include NCV891334MW33R2G (3.3 V output) and NCV891334MW25R2G (2.5 V output). These variants maintain identical pinouts and functionality while differing only in the regulated output voltage level.
